Test flights in high alpine environments 31. July 2018 In July 2018 two test flights were conducted in the area of Obergurgl (Ötztal, Austria). The areas of interest were the lowest part of the Hochebenkar rockglacier and the Rotmoos valley. http://www.mountainresearch.at/4dlamb/wp-content/uploads/2018/07/20180730_100310.mp4